Flashing



Jan. 16, 192s. 1,442,1{72

v A.G. NELSON.

FLASHING. man M021. 1921.

Patented Jan. 16, 1923.

UNITED lSTATES ALBERT Gr. NELSON, 0F EAST PORT CHESTER, CONNECTICUT.

A"FLASHING.

Application filed December 21, 1921. Serial No. 523,855.

To all whom t 'may concern.'

Be it known that I, ALBERT G. NELSON, a citizen of the UnitedStates, residing at-East Port Chester, in the county of Fairfield and State of Connecticut, have invented certain new and useful Improvements in Flashings, of which the following is a full, clear, and exact specification.

This invention relates to flashings for use around chimneys or on parapet walls, and has for its object to provide an improved and simplified construction of flashing which may be quickly positioned and will effectively prevent leaks around the chimneys or walls to which it may be attached.

A special object is to construct the `iashing in such a way that expansion and contraction of the metallic members thereof under varying climatic conditions will be automatically compensated forgvhereby the tendency of prior constructions of flashings to pull away or separate from the chimneys -or kwalls under such conditions is avoided.

Another important Objectis to provide simplified means for supporting the flashing on the chimney or wall, said supporting means being readily attachable after the chimney or wall has been erected and without weakening the same. Other objects will appear as the description proceeds.

The invention will be'first hereinafter described in connection with the accompanying drawings, which constitute part of'this specification, and then more specifically defined in the claims at the end of the description.

In the accompanying drawings, wherein similar reference characters are used to designate vcorresponding parts throughout the several views Figure 1 is a perspective view of a chimney and adjacentportions of the roof showing a flashing constructed substantially'in accordance with this invention applied thereto, and

Figure 2 is a vertical section through the flashing drawn to a larger scale.

Vhile the drawings show the flashing applied to a chimney 1,'where it protrudes from the roof 2, it will be understood that said flashing may also be used on parapet walls with equal success. Said flashing consists of two metallic members or strips 3 and 4, both of which are supported in proper position'on the chimney or wall 1 by L-v shaped hooks or brackets 5 which may be positioned in saidWall when vthe latter is being erected or driven into fthesame after its completion.

The lower member 3 of the fiashing has its upper edge turned inwardly and downwardly to form a horizontally extending lportion 6 adapted to rest upon the upper ends of the brackets v5, and a downwardly extending lportion 7 arranged .parallel to and spaced from `the vertical outer portion 8 of said member. The lower edge portion- 9 of the member 3 is bent inwardly from the outer vertical portion 8 to contact vwith the roof 2 adjacent the chimney wall. The lower extremity of sadportiont) is preferably bent upon itself, as at 10, providing a rounded edge 11to contact with one or'more layers of builders paper '12 usually placed over the juncture of the roof. and chimney wall.

The vupper member 4 of the :flashing has a horizontal yportion 13with a downwardly extending hook-shaped portion 14 at its inner edge to nt around the vertical/portion 7 of the member 3 and rest upon the brackets 5. From-the outer edge ofthe portion 13 an inclined portion 15 extends upwardly and toward the chimney wall, 4terminating a short distancefrom the latter. The upper edge of saidI inclined portion 15 is preferably bent upon itself, as at 16, leaving a rounded edge 17 arranged near said wall.

The lower edge ofsaid inclined portion 15 extends below the horizontal portion 13, as at 18, in order to deliver the drip from said inclined portion, which acts as a water shed, away from the chimney wall and the interengaging portions 'of the members v3 and 4 of the flashing.

The space between thecliimney wall and the inclined portion 15 of the member 4 isvfilled with plastic material 19'down`to ythe horizontal portion 13 andup tozthe rounded edge 17 of'said inclined portion 15. When said plastic material has set it forms a water tight seal between the member 4 and the chimney wall so that all moisture is prevented from running down the outer surface of said wall and entering the joint of the roof therewith. y

ln positioning the flashing, the lower metallic member 3 is first hooked over the brackets 5, which have been previously fixed in the wall at proper intervals, and the metallic member 4 is then inserted endwise so that itshoolr-shaped portion 14 will rest upon said brackets and below the vertical inner portion 7 of the member 3. Vhen thus assembled, the members 3 and 4 will be retained in position by the inwardly bent lower portion 9 of said member 3, and the connection between said members will bey such as to automatically compensate for expansion and contraction which may take place in either or both of said members under varying climatic conditions. Because of the fact that the interengaging portions 7 and 14: of the members 3 and 4 do allow for such compensa-tion, the tendency of the upper edge 17 ott the inclined portion l5 to break away fromy the plastic filling 19, or to pull said plastic filling away from the chimney wall, is greatly reduced, so that under ordinary conditions the joints between said plastic filling, member l and chimney wall, will remain intact. It a fissure should be formed between these parts as a result of unusual conditions, said iissure may be quickly filled and the leak stopped with plastic material similar to that used for the original filling 19.

I claim:

l. In a ashing, the `combination with upper and lower metallic members having interengaging marginal portions, o1c brackets projecting 'from a wall 'for supporting the flashing thereon, said interengaging portions being arranged between said brackets and wall.

2.111 a flashing, the combination with upper and lower metallic members having interengaging marginal portions, or" brackets projecting from a wall for supporting the flashing thereon, said'- interengaging portions being arranged between said brackets and wall, and the lower marginal portion of said lower member being: turned inwardly toward the wall below said brackets for the purpose specified.

3. In a flashing, the combination with upper and lower metallic members having interengaging marginal portions, of brackets projecting from a wall for supporting the flashing thereon, said interengaging portions being arranged between said brackets and wall, and said upper member having an inclined. portion forming. a water shed and extending outwardly beyond said interengaging portions of the members.

l. In a flashing, the combination with upper and lower metallic members having interengaging marginal portions, of brackets projecting from a wall for supporting the flashing thereon, said interengaging portions being arranged between said brackets and wall, said upper member having an outwardly extending horizontal portion and an upwardly extending inclined portion projecting below the outer edge of said horizontal portion for the purpose speciied.

5. In a flashing, the combination with upper and lower metallic members having interengaging marginal portions, ot brackets projecting from a wall for supporting the flashing thereon, said interengaging portions being arranged between said brackets and wall, said upper member having outwardly and, upwardly extending portions, the latter reaching near to the wall, and a filling of plastic material in the space between the wall and said outwardly and upwardly extending portions.

6. In a flashing, the combination with upper and lower metallic members, said lower member having its upper margin turned inwardly and downwardly and spaced therefrom, said upper member having its lower margin turned outwardly and upwardly to embrace said downwardly turned margin of the lower member, and brackets fixed in a wall and extending outwardly beyond said interengaging marginal portions of said members for supporting the flashing on the wall.

7. In a flashing, the combination with upper and lower metallic members, said lower member having its upper margin turned inwardly and downwardly and spaced therefrom, said upper portion 'having its lower margin turned outwardly and upwardly to embrace said downwardly turned margin oi the lower member, and brackets fixed in a wall and extending outwardly beyond said interengaging marginal portions oi said members for supporting the flashing on the wall, the lower marginal portion of said lower member being turned inwardly below said brackets Vtor retaining the members thereon.

In testimony whereof I have signed my name to this specification.

ALBERT G. NELSON. 

